JP2015223146A - Plant growth speed adjusting system, plant growth speed adjusting apparatus, and control method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide plants which do not require movement of a cultivation rack, and whose growth speed is unified by each cultivation rack unit (e.g., lot unit).SOLUTION: A plant growth speed adjusting system is a plant growth speed adjusting system which produces target plants, which includes: an image sensor for acquiring a growth level of target plants; illumination means for irradiating target plants with light in a lighting controllable manner; and a control part which determines a growth level based on the image data of the target plants acquired by the image sensor and controls the illumination means corresponding to a determination result, in which the control part controls the illumination means so as to synchronize the growth speed of each of the target plants.

Description

The present invention relates to a plant growth rate adjustment system, a plant growth rate adjustment device, and a control method therefor, such as vegetables (including flower trees).
About.

  In recent years, in the agricultural production field, greenhouse cultivation such as cabbage and lettuce has been flourishing throughout the year. However, it has been difficult to produce according to needs while ensuring the yield per unit area and the quality (size and color) of the fresh vegetables to be harvested.

  Patent Document 1 describes a biological production management device that generates biological production status information including biological growth information by taking a biological image with a camera and analyzing the obtained image.

  Further, Patent Document 1 determines the difference between the production status of the organism and the plan, and if the difference is within a predetermined allowable range, issues an instruction to continue production, and if the difference exceeds the allowable range, In the information generation and production plan generation step, a biological production management method for generating production plan correction information based on the production status information is described. That is, in the correction of the production plan, the atmosphere conditions around the cultivation rack are adjusted by moving and aligning the cultivation rack. (Paragraph 0063)

JP 2011-34248 A

However, in the method described in Patent Document 1, it is necessary to move the cultivation racks during the cultivation, and there is a disadvantage that the production efficiency is lowered and the cultivation degree of each cultivation rack cannot be finely adjusted. .
Further, Patent Document 1 suggests that it is necessary to modify the production plan when a deviation between the production plan and the actual production status is detected.

An object of the present invention is to provide a plant that does not require the movement of a cultivation rack and that has a uniform growth rate for each cultivation rack (for example, a lot).
According to the present invention, in the production process, the growth rate of plants can be adjusted, and orders can be efficiently shipped on the planned shipping date.

  In order to solve the above problems, a typical configuration of a plant growth rate adjustment system according to the present invention is a plant growth rate adjustment system that produces a target plant, and the plant growth rate adjustment that produces the target plant The system is based on an image sensor that acquires the degree of growth of the target plant, illumination means that irradiates the target plant with light dimmable, and the degree of growth based on the image data of the target plant acquired by the image sensor. A control unit that controls the illumination unit according to the determination result, and the control unit controls the illumination unit to synchronize the growth speed of each of the target plants. It is characterized by.

  In addition, the control unit of the plant growth rate adjustment system according to the present invention extracts the target plant having a slow growth rate, promotes the growth rate of the slow target plant, and controls the growth rate of each target plant. It is characterized by being synchronized.

  In addition, the control unit of the plant growth rate adjustment system according to the present invention extracts the target plant having a fast growth rate, suppresses the growth rate of the fast target plant, and controls the growth rate of each of the target plants. It is characterized by being synchronized.

A typical configuration of a plant growth speed adjustment device according to the present invention is a plant growth speed adjustment device used in a plant growth speed adjustment system for producing a target plant, and is an image sensor that acquires the growth degree of the target plant. Lighting means for irradiating the target plant so that the light can be dimmed, and determining the degree of growth based on the image data of the target plant acquired by the image sensor, and depending on the determination result, the lighting means A control unit that controls, the control unit,
The illumination means is controlled to synchronize the growth speed of each of the target plants.

  A representative configuration of a control method according to the present invention is a control method in a plant growth rate adjustment system for producing a target plant, the step of obtaining the growth degree of the target plant, and the light dimmable It includes a step of irradiating the target plant, a step of determining the degree of growth, and a synchronizing step of synchronizing the growth rate of the target plant according to the step of determining.

  ADVANTAGE OF THE INVENTION According to this invention, the plant which made the growth speed uniform in each cultivation mount unit (for example, lot unit) can be provided, without the movement of a cultivation mount. Further, in the production process, the growth rate of the plant can be adjusted, and the ordered product can be efficiently shipped on the planned shipping date.

It is a block diagram of the plant growth speed adjustment system concerning the embodiment of the present invention. It is a conceptual diagram of the example which implemented the light control of LED lighting in the plant growth speed adjustment system of FIG. It is a flowchart of the process of embodiment of this invention.

  FIG. 1 is a block diagram of a plant growth rate adjustment system according to an embodiment of the present invention.

  The plant growth rate adjustment system 1 includes a control unit 2 that controls various types of growing devices based on sensors in the plant factory and signals acquired by the sensors.

  When the control unit 2 acquires the information on the order for the target plant, the control unit 2 grasps the delivery date and automatically creates a production plan so as to match the quantity to be shipped in the delivery date. In addition, when the delivery date is changed during the production, it is determined whether or not the delivery date can be changed. Further, when variation occurs in the growth rate of the target plant, a parameter for which the growth environment should be changed and its change amount (growth environment change amount) are calculated. And based on the calculated result, a growth environment change instruction is performed. For example, in a configuration including the dimming controller 3, the CO2 controller 2, and the air conditioning controller 5, the control unit issues a change instruction to various controllers. Various controllers perform precise control of each subordinate device (LED lighting, CO2 generator, air conditioner, etc.).

  Specifically, the dimming controller 3 is instructed to change the light intensity or wavelength. Also, the CO2 controller is instructed to change the CO2 concentration and CO2 amount. In addition, the air conditioning controller 3 is instructed to change temperature and humidity.

  Furthermore, when it is calculated that the change of fertilization is necessary as a growth environment, adjustment of essential elements such as nitrogen, phosphoric acid and potassium, and essential elements such as iron, manganese and copper is appropriately performed.

  The image sensor A is, for example, a color camera, and acquires data such as the degree of growth, growth speed, color, leaf wilt and root rot of each target plant. X is an illuminance sensor, which detects the intensity and color of the light irradiated to the target plant by LED illumination. For example, an illuminance sensor that is composed of phototransistors and has a close human visibility is preferable. The LED illumination preferably has the same configuration as the illumination light used when displaying the shade of the target plant as white light or as a product to be displayed in the store where the product is shipped. In the production process, a light wavelength (for example, ˜700 nm) with high photosynthesis efficiency is preferable.

  Y is a concentration sensor that detects the concentration of CO 2, and detects the concentration of carbon dioxide required during photosynthesis. When the concentration of carbon dioxide is calculated as a parameter whose growth environment should be changed, the control unit 2 controls the amount of CO2 generated through the CO2 generator 4 via the CO2 controller 4.

  Z is a temperature / humidity sensor Z that detects temperature and humidity. The controller 2 controls the air conditioner R via the air conditioning controller 5 when the temperature and humidity are calculated as parameters for changing the growing environment.

  Various sensors should just select the position to arrange | position and the quantity to arrange | position according to the lot and production scale of a target plant.

  By taking such a system configuration, the growth rate of the target plant can be easily adjusted.

Next, FIG. 2 shows a production process of a target plant (for example, lettuce) in the plant factory 10.
The LED illumination P is controlled. First, the image sensor A detects a lettuce seedling E (an initial growth state). In state E, three-quarters of the seedlings are thinned out, leaving a lettuce with a good degree of growth.

  The remaining lettuce is 6 shares, and in state B, one of the 6 shares is delayed in growth. The growth delay is detected by the image sensor A. The growth delay may be detected using an image processing technique such as image contour extraction. The LED illumination at this time is uniformly irradiated to six strains of lettuce with uniform light K. Next, the amount of light irradiated to the lettuce g of the light emitting elements O is locally increased with respect to the lettuce strain f which is delayed in growth. For other lettuce, the amount of light irradiation is l. The irradiation amount 1 may be different from the case where the irradiation amount is the same as the irradiation amount k. The control unit 2 appropriately controls the amount of irradiation according to the number of remaining days until shipment and the time when a growth delay is detected. In this state C, the progress of six strains of lettuce is observed using the image sensor A. In the state B to the state C, the growth retarded lettuce f grows up to the size of the lettuce g, and the other lettuce F grows up to the size of the lettuce G.

  By irradiating lettuce g with a dose m for a certain period, lettuce g grows up to the size of lettuce h, and the other lettuce G grows up to the size of lettuce H. As a result, it is possible to catch up with the growth rate of lettuce f which is delayed in growth or other lettuce. Finally, the image sensor A confirms the uniformity of the size of the six strains of lettuce.

  FIG. 3 is a flowchart of the processing of this embodiment. In step S2, when an order is received, a production plan is automatically created for each order lot, and a delivery date is initially set. Next, in step S4, for example, production of the target plant (for example, lettuce) is performed so that a state like the state E of FIG. 2 is obtained. Next, in step S6, there are a case where there is a delivery date change from the customer (YES) t and a case where there is no delivery date change.

  First, when there is no delivery date change (NO), it is determined whether or not lettuce growth failure has occurred (YES) in step S8 (NO). In the case of NO in step S8, that is, when there is no growth failure, when the delivery date arrives (YES), it is further determined whether or not the shipping standard is satisfied, and if it is satisfied (YES) Is shipped (step S14). The shipping standard may be a manufacturer's voluntary standard, an industry standard, or an arrangement with a customer. If the delivery date has not arrived at step S10 (NO), the production is continued.

  If the shipping standard is not satisfied in step S12 (NO), it is determined whether or not the delivery date can be reset (step S18). If the delivery date can be reset (YES), the production plan is reviewed and the delivery date is reset (step S16). If the delivery date cannot be reset (NO), it is discarded as a defective product (step S20).

  On the other hand, if the growth is poor in step S8 (YES), the growth speeds of the target plants (a plurality of lettuce) are synchronized as described with reference to the lettuce figure of FIG. That is, in step S30 to step S32, it is determined whether or not the growth delay lettuce can be synchronized with the other lettuce (surrounding crops).

  If it is determined that synchronization is not possible (NO in step S32), it is determined whether or not the delivery date can be reset (step S18). If it is determined that synchronization is possible (YES in step S32), the amount of change in the growth environment is calculated for the poorly developed region (corresponding to the lettuce f in state B in FIG. 2) (step S34). The control unit 2 instructs the change of the growth environment to each device to change the growth environment (step S36).

  If YES in step S6, the delivery date is changed to determine whether production can be continued (steps S40 to S42). If it is determined that it is possible to continue production while changing the delivery date (YES in step S42), the production plan is reviewed and the delivery date is reset (step S44). The amount of change in the growth environment is calculated for the lot whose delivery date has been changed (step S46). The control unit 2 instructs the change of the growth environment to each device with respect to the change amount of the growth environment (step S48).

  If it is determined in steps S40 to S42 that it is impossible to continue production while changing the delivery date (NO in step S42), the customer cannot change the delivery date. Notification is made (step S50).

  As described above, in the production process, the growth rate of plants can be adjusted, and orders can be efficiently shipped on the planned shipping date.

  Although the present invention has been described above with reference to the preferred embodiments of the present invention, it is needless to say that the present invention is not limited to such examples. It will be apparent to those skilled in the art that various changes and modifications can be made within the scope of the claims, and these are naturally within the technical scope of the present invention. Understood.

According to the present invention, highly uniform plants (vegetables, flowering trees, etc.) can be efficiently produced. The present invention can also be applied to plant factories, fish culture factories, livestock production factories, and the like.

DESCRIPTION OF SYMBOLS 1 ... Plant growth speed adjustment system 2 ... Control part 3 ... Dimming controller 4 ... Carbon dioxide (CO2) controller 5 ... Air-conditioning controller 10 ... Plant factory A ... Image sensor E ... Early growth state F ... State with growth delay G: State in which the amount of light irradiation has been locally increased H ... State in which plants have grown uniformly O ... Light emitting element P ... LED illumination Q ... CO2 generator R ... Air conditioner (air conditioner)
X ... Illuminance sensor Y ... CO2 concentration sensor Z ... Temperature / humidity sensor

Claims (5)

A plant growth rate adjustment system for producing a target plant,
An image sensor for acquiring the degree of growth of the target plant;
Illumination means for irradiating the target plant with light dimmable;
A control unit that determines the degree of growth based on the image data of the target plant acquired by the image sensor, and controls the illumination unit according to the determination result;
The controller is
The plant growth rate adjustment system, wherein the illumination means is controlled to synchronize the growth rates of the target plants. The controller is
The plant growth rate adjustment according to claim 1, wherein the target plant having a slow growth rate is extracted, the growth rate of the slow target plant is promoted, and the growth rate of each of the target plants is synchronized. system. The controller is
The plant growth rate adjustment according to claim 1, wherein the target plant having a high growth rate is extracted, the growth rate of the fast target plant is suppressed, and the growth rate of each of the target plants is synchronized. system. A plant growth rate adjustment device used in a plant growth rate adjustment system for producing a target plant,
An image sensor for acquiring the degree of growth of the target plant;
Illumination means for irradiating the target plant with light dimmable;
A control unit that determines the degree of growth based on the image data of the target plant acquired by the image sensor, and controls the illumination unit according to the determination result;
The controller is
The plant growth rate adjusting apparatus characterized by controlling the lighting means so as to synchronize the growth rate of each of the target plants. A control method in a plant growth rate adjustment system for producing a target plant,
Obtaining a growth degree of the target plant;
Irradiating the target plant with light dimmable;
Determining the degree of growth;
According to the determining step,
And synchronizing the growth rate of the target plant.

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